In the modern construction industry, precast concrete technology is gaining increasing popularity due to its high efficiency, environmental friendliness, and controlled quality. Amid this shift toward prefabrication, a relatively unassuming yet crucial technological innovation is quietly changing the rules of the game: precast building magnet technology. This powerful magnetic fastening system is gradually replacing traditional mechanical fastening methods, bringing unprecedented changes to the construction industry.

Before the advent of prefabricated building magnets, the construction industry primarily relied on mechanical fasteners to secure precast concrete forms and panels. These traditional methods, which included screws, bolts, and welding, presented numerous unavoidable issues:

- Time and labor consuming: Each fastening point required manual operation, resulting in inefficient installation.

- Material damage: Mechanical fastening required drilling holes in steel plates and precast components, compromising the structural integrity of the materials.

- Limited precision: Manual positioning was prone to deviation, impacting construction quality.

- Non-reusable: Many mechanical fasteners were single-use, increasing costs and waste.

- Safety risks: Working at heights and using power tools increased construction hazards.

How do prefabricated construction magnets work?

Prefabricated construction magnets are fixtures based on high-performance permanent magnets (such as neodymium iron boron) that generate powerful magnetic force through a cleverly designed magnetic circuit system. These magnets typically take the form of a hollow, bottomless rectangular box with a magnetic attraction assembly at one end and a button lever and securing stud at the other.

The operating principle is simple: When the magnet box is placed on a steel formwork table or prefabricated component, the high-performance permanent magnets within generate a powerful magnetic force, which is transmitted through the magnetic guide sheet to securely hold the prefabricated component in place. A button lever can be operated to turn the magnetic force on and off, enabling quick securing and removal of the prefabricated component.

Let's focus on how prefabricated construction magnets are replacing traditional processes.

1. Application in Wall Fixing

The traditional method of installing prefabricated wall components requires multiple people to coordinate, perform measurement and positioning, and perform complex drilling and fixing processes. With prefabricated construction magnets, simply place the magnetic box in the designated position on the formwork, activate the magnets with a push of a button, and then bring the prefabricated wall close to the magnetic box. The magnets instantly secure the wall in place. This method not only speeds up installation but also ensures wall stability and verticality while minimizing damage to the wall material.

2. Innovation in Floor Installation

Traditional methods for installing prefabricated floor components require extensive support structures and mechanical connectors. With magnet technology, the magnetic box can be embedded in the support structure beneath the floor. Once the prefabricated floor component is in place, the magnets automatically secure it. This nail- and glue-free installation method not only simplifies the construction process but also prevents loosening and deformation of the floor over time.

3. Advantages in Roof Assembly

Magnet technology demonstrates unique advantages in the assembly of precast roof components. Through magnetic force, adjacent precast roof components are tightly attached to form a stable overall structure. Furthermore, the magnetic suction effectively resists external factors such as wind pressure and temperature fluctuations, ensuring the safety and durability of the roof.

4. Innovation in Formwork Fixing

Formwork fixing is crucial in precast concrete production. Traditional methods, using mechanical clamps and bolts, are not only time-consuming and labor-intensive, but also prone to formwork deformation and concrete leakage. The magnetic fixing system uses powerful magnetic force to securely fasten the formwork to the steel formwork base, significantly improving the accuracy and efficiency of formwork installation.

Precast concrete magnets come in several types, depending on their specific use case:

1. Magnetic Chamfers: Used to create chamfers on concrete edges

2. Insert Magnets: Embedded in concrete to provide a secure attachment point

3. Baffle Magnets: Used to secure side rails and blocks